All-Natural, Effective Air Freshener Febreze Alternatives?

Q: Because of pregnancy-induced smell aversions, I have been practically living with a can of Febreeze Air Effects in my hand. It's the only thing I've found that actually clears the air of the dog food smells, cooking smells, the fridge, the garbage ... everything that even remotely stinks gets a spray a few times a day. But the ingredients aren't listed on the back of the can, and I can only imagine that it's not anything I should be constantly breathing in. Do you or the readers have any recipes for homemade air-freshener sprays OR good, healthy, green air-clearing sprays? I need something that effectively helps clear the air, nothing that just simply adds another smell. Would love your help!